Pavel Durov, Russia's Zuckerberg, CEO of Vkontakte

Pavel is 27 years old and spent last weekend throwing money out of his office window. Plus, he recently published a manifesto urging Russia to tax manufacturing companies out of existence and sell territory to foreigners. Publishing manifestos is sexy.

Mike Singleton, engineer at Foursquare

As far as we can tell from his Twitter, he likes watching soccer, listening to Edward Sharp & the Magnetic Zeros, eating affogato, and he vaguely followed the Facebook IPO. And eating affogato is sexy.

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Corrine Yu, principal programmer of Microsoft's Halo

She programmed Brothers in Arms and Borderlands for XBOX 360, PS3, and PC. She oversaw Microsoft's production of Halo. And she's been called one of the most influential women in gaming in the last decade.